Concrete-mixing machine.



wfAcHEsoN.

CONCRETEI'MIXING MACHINE. APPLICATION men EEB. 8.1916.

1,21 1,5m@ Pmntfe-d 5311.2,1911

amante/L hausse/J wratten acnnson, or surname, NEBRASKA.

CQNCRETE-MIXING MACHINE.

nettare., spams of Letters Patent.

Patented dan. 2, `1911 t.

Application filed February 8, 1916. erial No. 77,068.

To all whom t may concern: I

Be it known that l, WILLIAM AcHnsoN, a

citizen of the 'United States, residing at Superior, in the county of Nuckolls and State of Nebraska, have invented new and useful mprovementsin Concrete-Miam Machines, of which the following is a speci. cation.

' rEhe invention relates to a mixing machine, land more particularly to the class of concrete or cement mixers.

The primary object of the invention is the provision of a mixing machine of 'this character wherein the cylinder or drum thereof is mounted in a novel manner for rotation and tilting movement so that it can be readily dumped after the contents has been thoroughly mixed in the rotation of the same. A i y' Another object of the invention is the pro vision of a mixing machine of this character.

wherein the same in its entirety is novel in, construction to assure the thorough mixing of the materials therein with despatch.

A further object of the invention is the provision of a mixing machine of this character wherein the cylinder or the drum thereof is mounted in a manner to permit the adjustment of' the same for the convenient filling of the cylinder or drum.

A further object ofthe invention is the provision of a mixing machine of this character which is simple in construction, thoroughly reliable and eilicient'in its opera-v tion, strong, durable and inexpensive in manufacture.

Other objects will be in part obvious. and inv art hereinafter pointed out.v

he invention accordingly consists in the features of construction, combination of elementsand arrangement of parts hereinafter exemplified in the construction described, and the scope of the application of which will be indicated in the appended claim.

In the accompanying drawings: Figure 1 is a side elevation of a mixing machine constructed in accordance with the invention; Fig. 2 is a front elevation.

Similar reference characters indicate corresponding parts throughout the several views of the drawings.

Referring to the drawings in detail, 'the mixing machine comprises a bed orv base frame A, from the side sills 10 of which rise vertical uprights 11, to the upper endsiof which are fixed rearwardly inclined braces 12, the saine being also fixed to the side sills 10 of the bed or base frame A. Between the uprights 11 is arranged a locking frame B including the side beams 13 and a rear cross beam 14, the beams 13 being swingingly supported upon pivots 15 which are journale in the uprights 11 near the upper ends thereof to permit the rocking of the frame B when the occasion requires.

Secured to theside beams 13 ofthe rocking frame B near the front end thereof are top and bottom hoop sections 16 and 17, respectively, which encircle a rotary cylinder or drum 18 having mounted exteriorly thereon a circular track 19 engaging rollers '20 which are journaled in the bottoni hoop section 17 to minimize friction and per-mit the free rotation of the cylinder or drum, which is driven in a manner presently described. The cylindery orv drum 18 at its rear closed endhas thereon spaced cross strapircns 21 to which is bolted or otherwise xed a gear 22, which may be formed with a central stud shaft journaled in a suitable bearing secured to the cross .beam 14 of the rockingframe B, and meshing with this gear 22 is a pinion 25 secured toY a driven shaft 26-journaled in suitable bearings carried up'on the cross beam 14 of the said rocking" frame B, and this driven shaft at its outer end carries a sprocket wheel 28 over which is trained an endless sprocket chain 29, the same being also trained over a sprocket gear 30 secured to the counter-shaft 31 journaled in one uprightv 11 and ay bracket 32 mounted thereon, the shaft 31 being also fittedl with a belt wheel 33 adapted to be driven in a manner presently described.

Mounted upon the base or bedframe A is a suitable motor 34 over which is adapted to be trained an endless belt 35 which is also trained over the belt wheel 33 so that on the starting of the motor 34 the cylinder or drum l 18 will be rotated thereby.

the same, the materials being introduced into the cylinder or drum, through the open end thereof, and when these materials are introduced the said cylinder or drum is disposed lthe required length to project a distance beyond the open end of the cylinder or drum 18 so that the rocking frame B can be swung for the adjustment thereof.

The machine is constructed in such a way that the drum or cylinder willrevolve at any angle, that is, the said drum or cylinder will revolve when the machine is in position for filling or when being dumped or at any other angle or position desired. On account of the particular construction of the machine the cylinder or drum has an open end constituting an unobstructed mouth or feeding end, thus allowing more ease in feeding or filling and also permitting inspection and observation of the condition of the mixture when it is being mixed so as to observe When the mixture is ready to be dumped, and when the machineisbeing emptied the cylinder or drum and its contents can be more readily viewed to determine Whether a Wheelbarrow or other conveyer will hold the entire contents of the cylinder or drum.

The machine, by reason of its particular construction, is more nearly at a balance and less strength and force is, therefore, needed to dump the cylinder or drum, that is, when the machine is in dumping position the lever for dumpingmay be operated by one hand. It will be apparent that by reason of the construction ofthe machine andv the parts thereof which bear such relative position with respect to each other and the machine b'ears such relative position to the sand and cement being fed into it that the act or operation of filling the machine and the act or operation of watching the mixture, as before stated, and the act or operation of dumping the machine, can be effected by the operator while standing in one place or position, thus saving time and labor and allowing more cement to be mixed in the machine in the same length of time than if the operator had to change his position or go to the other side of the machine to dump the cylinder or drum thereof.

Having thus described my invention, ll claim: y

In combination, a pair of spaced standards, a bar connecting the standards, a tilting frame journaled between the standards adjacent one of its ends, extensions formed on the frame and normally engageable with said bar, a mixing drum rotatively mounted within the frame, hoop sections carried by the frame and encircling said drum, a bracket secured to one end of the frame and upstanding therefrom, a handle having one end secured to the bracket and intermediate portion being secured to one of the hoop sections, and means carried by the standards and frame for rotating said drum.

In testimony whereof I affix my signature -in presence of two Witnesses.

WILLAM ACHESON.

W. S. YoUNG. 

